Development of Alkali-Activated Binders from Recycling Regional Tuff and Marble Wastes

Authors : İlker TEKİN, Baraka CIZA, H Süleyman GÖKÇE

Pages : 371-387

Doi:10.31202/ecjse.1225457

View : 41 | Download : 62

Publication Date : 2023-05-31

Article Type : Research Paper

Abstract :The sustainability goals of the developing world have led many industries to recycle their wastes and reduce emitting greenhouse gases. To contribute to these environmental responsibilities, this study has focused on the development of eco-friendly binder materials from regional ground tuff and marble wastes by the activation of Na2SiO3 and NaOH or slaked lime insert ignore into journalissuearticles values(Cainsert ignore into journalissuearticles values(OH);2);. The results of the study show that alkali-activated composites tend to the expansion, drying shrinkage cracking, leaching and efflorescence. The compressive strength values of the NaOH and Cainsert ignore into journalissuearticles values(OH);2-activated pastes have reached up to 15 MPa and 9 MPa, respectively. A reduction in the NaOH molarity has improved the compressive strength, dimensional stability and durability of tuff-based alkali-activated pastes.
Keywords : Waste management and disposal, Volcanic tuff and marble wastes, NaOH and Ca OH, 2 activators, Alkali activated cements, Physical and mechanical properties